Marantz SR7009/U1B Service Manual page 86

1.9 Forced USB All Device Write Mode
1.9.1. Actions
Mode used when this unit cannot be recovered.
Forcibly switches this unit to USB update mode.
1.9.2. Operations
Press the "HDMI OUT" and "STATUS" buttons simultaneously while inserting the AC plug to turn the power on.
1.9.2. The firmware update finishes.
The update after the restart, all devices will be updated.
1.10. Update Procedure in the Event of a CY920 Error
1.10.1. Actions
Perform the following update procedure if "CY920 Error" appears in the display when the power is turned on after
replacing the DIGITAL PCB or the CY920.
1.10.2. Operations
(1) Remove the AC power plug and turn off the power.
(2) Copy the update file to a USB memory device and insert the USB memory device in the USB port.
(3) Insert the AC plug and turn on the power.
(4) The update starts automatically after "CY920 Error" appears in the display.
Display
L1
P l e a s e
FLD
L2
U p d a t e F i l e C h e c k
(5) The firmware update finishes.
Display
L1
F i r m
FLD
L2
U p d a t e
The unit restarts after the update is finished.
(6) A fter the update, check that "CY920 Error" is no longer displayed, and check the version of the new firmware.
See "1. Version Display Mode" (21 page ).
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U p d a t e
C o m p l e t e
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